bartlett



(No Model.)

G. S. BARTLETT.

PUMP.

Patented J an. 24, 1882.

fm/ewior {@0 6 ma -MW rrrca.

ATENT GEORGE BARTLETT, OF LEON, IOWA.

PUMP.

SPECIFICATION forming part of Letters Patent No. 252,643, dated January 24, 1882.

' Application filed July 15, 1881. (No model.)

T 0 all whom it may concern: 1

Be it known that I, GEORGE S. BARTLETT, a citizen of the United States, residing at Leon, in the county of Decatur and State of Iowa, have invented certain new and useful Improvements in Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention has for its object to furnish improvements on the pump for which Letters Patent No. 232,666 were granted to me September 28, 1880.

It consists in having the tripping-levers connected to the valves, each valve having its own lever, and arranged as hereinafter fully explained.

In the drawings, Figure 1 is a vertical section of a pump containing my improvements; and Fig. 2 is a vertical section, showing a modification ot' the tripping-rod of the checkvalve, also a detail view of the check-valve and tripping-rod. 1

a. is the cylinder, provided with the throat or valve-openinga, and having the upper end of the stock or tube a connected thereto, as

shown. The stand-pipe a is connected to the cylinder so as to cover the valve-opening a and provide asubstantial seat for the valve 6?,

which is hinged on the upper side of said opening and hangs vertically downward and closes the throat or opening a.

At or near the center of the valve 1) the tripping-rod b is connected, which is extended through the valve-opening a, and is bent upward within the cylinder to a point where its end will be struckby the piston c.

The check-valve d is hinged to the top of the stock c and at a pointat a rightangle to the valve-opening a, so that when raised the water will run directly from the stand-pipe into the stock without first running over the top of the said valve, as in my former patent, No. 232,666.

(1 is a tripping-rod fixed to the rear or hinged end of the valve (1, and is on a level with the upper end of the tripping-rod I), attached to valve b. The tripping-rod (1 maybe fixed rigidly to the shank of the valve (7, as shown in Fig. 1; or it may be hinged and held by a spring, 01 and stop (1 which engages the outer end of the shank, as shown in Fig. 2. In Fig. 1 the end ofthe rod will slide outwardly when struck by the piston, and in Fig. 2 its motion is inwardly. I prefer to make it a rigid rod, as shown in Fig. 1, for thereby I dispense with the additional mechanism shown in Fig. 2,

which is liable to get out of order by reason 'tormer device,in that the water is given a more direct course from the stand-pipe to the stock, the arrangement is simpler and less expensive, and can be repaired with greater ease. The tripping-rods being connected directly to the valves insures a more accurate action of the latter.

Having thus described my invention, what I claim, and desire to secure by Letters Patent 1s In a force-pump, the combination, with the valves 1) and d and piston c, of the trippingrod 1), having one end made fast to the valve 1) and its other end carried through the valveopening a and bent upward into the cylinder, and the'tripping rod d,'having one end made fast to the hinged end of the valve d and its other end carried upward into the cylinder to a position about level with the upper end of the tripping-lever b, substantially as set forth.

In testimony whereof I aflix my signature, in presence of two witnesses, on this 27th day of June, 1881.

GEORGE S. BARTLETT. 

